Rugby (Union) does not have the same incidence of head on head clashes which is what the article focuses on. The mouthguard is actually the key safety gear for

Rugby (Union) does not have the same incidence of head on head clashes which is what the article focuses on. The mouthguard is actually the key safety gear for reducing the likelihood and severity of concussion injuries. The soft headgear sometimes worn is primarily for protecting the ears during the breakdown and scrum.